Home / 764,176.26-1,054,574.20-420,044.06

Finding the Fourth Proportional to 764,176.26, 1,054,574.20 and 420,044.06

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Solution

The fourth proportional to 764,176.26, 1,054,574.20 and 420,044.06 is: 579,666.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,176.26 : 1,054,574.20 = 420,044.06 : x
  2. Step 2: Convert to fraction form
    764,176.26/1,054,574.20 = 420,044.06/x
  3. Step 3: Cross multiply
    764,176.26x = 1,054,574.20 × 420,044.06
  4. Step 4: Simplify right side
    764,176.26x = 442,967,628,539.25
  5. Step 5: Solve for x
    x = 442,967,628,539.25/764,176.26
  6. Step 6: Final answer
    x = 579,666.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.